Improvement in dies for welding plow-irons



UNITED STATES PATENT OFFICE OIIARLES I-I. THOMPSON, OF MOLINE, ILLINOIS, ASSIGNOR OF ONE-HALF HIS RIGHT TO JNO. VANLURANOE, OF SAME PLAGE.

IMPROVEMENT IN DIES FOR WELDING PLOW-IRCNS.

Specification forming part of Letters Patent No. l 52,579, dated June 30,1b74; application filed April 2l, 1874.

To all lwhom it 'may concern:

Be it known that I, CHARLES H. THOMP- soN, ot' Moline, in the county of Rock Island and State ot' Illinois, have invented certain new and useful Improvements in the Manu- The accompanying drawings represent my invention.

a represents the lower part of the die, in which the parts are placed to be welded together. In the top of this block is formed a recess, which has a vertical shoulder, b, with a small offset, c, on one side, a at bottom, d, and a curved slanting surface, e, which extends diagonally backward from the shoulder, as shown. The upper part, g, of the die has its under side so formed as to correspond to the shape of the recess in the lower part, a, there being a sufcient space left between the two to receive the land-side and brace, which are to be welded together. The landside h has a rabbet in its outer side at the front end, corresponding to the offset c in the die, in which ral )bet the downwardly-proiecting wing of the slip-share fits. The wingbrace t consists of a plate of any desired length or width, which projects backward from the front end of landside at an angle of about thirty degrees, and which has a row of, holes along its upper and lower edges, by means of which both the slipshare and mold-board are secured to it. The land-side and this brace, having been heated to a welding-heat, are placed in the die a, and then by dropping the upper part g upon them they are not only welded solidly together, but the wing-brace is molded into shape so as to receive the share and mold-board.

Having thus described my invention, I cla-im- The dies a, g, constructed with the vertical shoulder b, and diagonal slantingsurfaee c, substantially as and for the purpose set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 28th day of March, 1874.

4 CHARLES I-I. THOMPSON.

Witnesses EUGENE LE'wIs, J ouN VANLURAN E. 

